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ROBERT J.KING, OF LANCASTER CITY,` PENNSYLVANI.

Letters Patent No. 82,126, dated.5'eptember 15, 1868.

IMPROVEMENT IN OGI'LLATING STEAMFENGIN E S.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, ROBERT J. KING, of Lancaster city, county of Lancaster, and State of Pennsylvania, have invented an Improved Oseillating Engine; and I hereby declare'the following to be an exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of 'this specification, in whicht Figure 1 represents a top view -of the oseillating engine.

Fignre 2 is a side elevation of the same.

Figure 3 represents a rear view of the steam-cylinder and ehest, with the reoeiving and discharge-pipes on each, testing on the trunnions.

The nature of my invention consists in'the'arrangement of the connecting-rod A, with the devices for actuating the valve-stem K, with the steam-cylinder. I

A is a connecting-rod, with its slot O, at one end, in which the adjustable pin D (of the npright lever E) operates, and is regnlated in the slot O by means of'the set-screws F F, for the pnrpose of adjnsting the commencement of the stroke of the valve-rod.

G is the rock-shaft, that is attached to the head of the'cyl'inder H, and the arm J that is attach'ed to the roek-shaft G operates the valve-red K.

I M is the steam-ingress pipe, through ,which the steam is introduced into the steam-chest N. At the oppo-` site side of the steam-ohest N is a similar steam-pipe, R. The pipes M and R pivot on the trunnions P, as a centre. By this means I avoid heating the trunnions; I

The eccentrie, S, as constructed on the shaft T, operates in a direct line with the wrist or crank V.

The valve on top of the cylinder operates with the corresponding movements of the cylinder and eocentric on the shaft.

I obtain a different movement from the ordinary method, the valve moving, when it starts to shut off, until it opens nearly a full port, -fonr times as fast as it does the other half or balance lof the stroke. I get a full exhaust at once.

The moment the wrist or crank-pin is at the centre, I have a sixteenth lead, and immediately after, a full port, when the valve closes one-third the opening of itself. The action produced is similar to that of a tappetvalve.

The wrist V -is attached to the outside of driving-wheel X, which revolves on the one end of the shaft T. Y is the fly-Wheel, also revolving upon the shaft-T.

What I claim as my invention, and desire to secure by Letters Patent, is- 1. The arrangement of the connecting-rod A, with its slot C and regulating-devices D, E, and F, with the rock-shaft G and eoeentric, S, as herein described.

2. The'arrangement of the eccentric, S, with reference to the parts A, C, I), E, and F, and the shaft T, as

hereiny set forth.

3. The arrangement of the angular pipes M and R with the steam-Ghost N and the trunnions P, as herein set forth.

ROBT. J. KING.

Witnesses:

J. FRANKLIN'REIGART, Emi. F. BROWN. 

